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Anonymous's avatar
Anonymous
Not applicable
5 years ago
Solved

Powerquery filter only most recent data rows

Hi,   In a referenced table in PowerQuery I need to work only with latest data from the original table based on column YearMonth (format 202011, 202010, etc). So far we were manually copying newest...
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  • Icey's avatar
    Icey
    5 years ago

    Hi Anonymous ,

     

    Try this:

     

    Method1:

    let
    Source = Table.FromRows(Json.Document(Binary.Decompress(Binary.FromText("i45WMjIwMtA3NNQ3VNJRMlSK1UGIGAFFjJBEDMBqjFFEQGpMECKWYCWmyAIgFWZKsbEA", BinaryEncoding.Base64), Compression.Deflate)), let _t = ((type nullable text) meta [Serialized.Text = true]) in type table [Date = _t, Value = _t]),
    #"Changed Type" = Table.TransformColumnTypes(Source,{{"Date", type date}, {"Value", Int64.Type}}),
    #"Added Custom" = Table.AddColumn(#"Changed Type", "Custom", each Date.IsInCurrentMonth([Date])),
    #"Filtered Rows" = Table.SelectRows(#"Added Custom", each ([Custom] = true)),
    #"Removed Columns" = Table.RemoveColumns(#"Filtered Rows",{"Custom"})
in
    #"Removed Columns"

     

    Method2:

    let
    Source = Table.FromRows(Json.Document(Binary.Decompress(Binary.FromText("i45WMjIwMtA3NNQ3VNJRMlSK1UGIGAFFjJBEDMBqjFFEQGpMECKWYCWmyAIgFWZQAUOgvBFYiblSbCwA", BinaryEncoding.Base64), Compression.Deflate)), let _t = ((type nullable text) meta [Serialized.Text = true]) in type table [Date = _t, Value = _t]),
    #"Changed Type" = Table.TransformColumnTypes(Source,{{"Date", type date}, {"Value", Int64.Type}}),
    #"Added Custom" = Table.AddColumn(#"Changed Type", "Custom", each (Date.Year(DateTime.LocalNow())-Date.Year([Date]))*12 + Date.Month(DateTime.LocalNow()) - Date.Month([Date])),
    #"Filtered Rows" = Table.SelectRows(#"Added Custom", each [Custom] < Recent_N_Month),
    #"Removed Columns" = Table.RemoveColumns(#"Filtered Rows",{"Custom"})
in
    #"Removed Columns"

     

    BTW, .pbix file attached.

     

     

    Best regards

    Icey

     

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